Summary [AniDB]: * Based on a light novel series written by [Kawakami Minoru] and illustrated by [Satoyasu].
After claiming sovereignty over the Japanese prefecture Mikawa, the flying city-ship [Musashi] seeks refuge by retreating to England. While initial talks with the reluctant ruler of England seem promising, sudden chaos ensues as the Musashi finds itself in the middle of a re-enactment of the 1588 AD invasion of England by the Spanish Armada. Now the students of the Ariadust Academy must use their unique abilities to gain allies while simultaneously defending the resurrected heir to the Mikawa throne, [Horizon], against the various world superpowers which are now their enemies.
Source: ANN